From the description I would have expected nothing less than good impulsive medium and deep bass. This he senses fully and I like it very much to emphasize the bass, because in normal linear frequency response does not come off easily enough.
However, I guessed by the Wertlegung the manufacturer on the bass that at that price the highs and mids suffer. But this is not the case, any fine treble clear and in good relationship rendered to the depths.
But !!! despite the good sound quality, JVC has very save on the cable, which I find very disappointing. No L-Klink plug what a cable break when carrying the MP3 player in your pocket largely inhibits, and the cable itself is so thin and so delicate that it seems like a joke next to such a powerful speaker capsules. So these cables is the Ls not worthy!
Comfort as well, are already bit chunky, but not yet long as some other headphones.
So in short:
+ Very good bass
+ Clear heights
+ Comfort
Phone jack
Cable
They are a sound tip, but they will probably soon come due to bad cable for cable break, despite careful handling ...